请问,是应该说 The teacher cheered the sick girl up, 还是应该这么表达,The teacher cheered up the sick girl.
两种表达都可以。所以下面两句都对:
The teacher cheered the sick girl up.
The teacher cheered up the sick girl.
但是,若 cheer up 的宾语是代词,则必须将代词放在 cheer up 的中间。如:
The teacher cheered her up.